public TProperty TryGetAssociatedItemProperty <TProperty>(uint itemId) where TProperty : class, IItemProperty
{
if (typeof(TProperty).IsAbstract)
{
ExceptionUtil.ThrowInvalidOperationException($"Cannot call this method with an abstract type, type: { typeof(TProperty).Name }.");
}
ItemPropertiesBox itemPropertiesBox = this.metaBox.ItemProperties;
IReadOnlyList <ItemPropertyAssociationEntry> items = itemPropertiesBox.TryGetAssociatedProperties(itemId);
if (items != null)
{
for (int i = 0; i < items.Count; i++)
{
IItemProperty property = itemPropertiesBox.TryGetProperty(items[i].PropertyIndex);
if (property is TProperty requestedProperty)
{
return(requestedProperty);
}
}
}
return(null);
}
public bool HasUnsupportedEssentialProperties(uint itemId)
{
ItemPropertiesBox itemPropertiesBox = this.metaBox.ItemProperties;
IReadOnlyList <ItemPropertyAssociationEntry> items = itemPropertiesBox.TryGetAssociatedProperties(itemId);
if (items != null)
{
for (int i = 0; i < items.Count; i++)
{
ItemPropertyAssociationEntry entry = items[i];
if (entry.Essential)
{
IItemProperty property = itemPropertiesBox.TryGetProperty(entry.PropertyIndex);
if (property is null)
{
return(true);
}
}
}
}
return(false);
}
public void GetTransformationProperties(uint itemId,
out CleanApertureBox cleanAperture,
out ImageRotateBox imageRotate,
out ImageMirrorBox imageMirror)
{
cleanAperture = null;
imageRotate = null;
imageMirror = null;
ItemPropertiesBox itemPropertiesBox = this.metaBox.ItemProperties;
IReadOnlyList <ItemPropertyAssociationEntry> items = itemPropertiesBox.TryGetAssociatedProperties(itemId);
if (items != null)
{
for (int i = 0; i < items.Count; i++)
{
IItemProperty property = itemPropertiesBox.TryGetProperty(items[i].PropertyIndex);
if (property != null)
{
if (property.Type == BoxTypes.CleanAperture)
{
cleanAperture = (CleanApertureBox)property;
}
else if (property.Type == BoxTypes.ImageRotation)
{
imageRotate = (ImageRotateBox)property;
}
else if (property.Type == BoxTypes.ImageMirror)
{
imageMirror = (ImageMirrorBox)property;
}
}
}
}
}